CN101397002A - Airbag cover body and airbag apparatus - Google Patents
Airbag cover body and airbag apparatus Download PDFInfo
- Publication number
- CN101397002A CN101397002A CNA2008101497919A CN200810149791A CN101397002A CN 101397002 A CN101397002 A CN 101397002A CN A2008101497919 A CNA2008101497919 A CN A2008101497919A CN 200810149791 A CN200810149791 A CN 200810149791A CN 101397002 A CN101397002 A CN 101397002A
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- China
- Prior art keywords
- air bag
- cover body
- compartment
- supporting slice
- outside
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/21—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle side panels, e.g. doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention provides a cover body of an airbag and an airbag device. The airbag belonging to a vehicle door part is expanded smoothly along a side part of a carriage, and appearance of the airbag device is improved. The airbag (31) is expanded upwards from the vehicle door part to be at the side of passengers. The cover body (22) which cover the airbag (31) is formed by overlaying an outer part (61) made of a hard resin to an inner part (62) made of a soft resin. A supporting piece part (87) is protruded from the carriage external side of the inner part (62). A rupture predetermining section (99) is formed on the supporting piece part (87) and ruptures when the airbag (31) is expanded such that a leaf part (73) rotates to the inner side of the carriage.
Description
Technical field
The cover body of the air bag that the present invention relates to for example expands in the seat side of automobile launches and airbag apparatus with this air bag.
Background technology
In the past, known have air bag is expanded in the seat side of automobile launch, with the airbag apparatus of protection passenger by side impact the time.Further, for this airbag apparatus, known have a following structure: air bag is accommodated in the car door portion of compartment sidepiece with folded state, and air bag is expanded upward from this car door portion launch (for example, with reference to patent documentations 1) such as heads with the protection passenger.Following structures has been shown: after on the inner panel that air bag and charging blower (inflator) etc. is installed in car door portion, door panel is installed in the mode that covers these parts and inner panel in this patent documentation 1.And then, in this structure, be formed with hinge, and to be provided with when the airbag deployment with the hinge along the edge part of door panel upside be the cap that fulcrum rotates to upside in the inboard, compartment of door panel.
But in this structure, because cap is along the edge part setting of door panel upside, the leading section of cap becomes free end, therefore owing to repeatedly open and close car door or passenger when pushing the door trim plate, is difficult for keeping the local appearance of cap.
From this point, consideration makes hinge with a side of cap, opposite side is made the structure of the tear line that ruptures when the airbag deployment, but seek to make it to satisfy following various requirement: to prevent to cause outward appearance to worsen by tear line is set, guarantee as the desired rigidity of door panel the characteristic that under wide temperature conditions, can rupture smoothly and rotate etc.
Patent documentation 1: TOHKEMY 2006-88731 communique
As mentioned above, with regard to covering the cover body of the air bag make the airbag apparatus that air bag launches upward from car door portion, seek to make it to satisfy following various requirement: to keep good surface appearance, guarantee rigidity, the characteristic that cap rotates smoothly etc.
Summary of the invention
The present invention finishes in view of the above problems, and its purpose is to provide a kind of can keep good surface appearance, can guarantee rigidity and the cover body and the airbag apparatus of the air bag that rotates smoothly when airbag deployment.
The cover body of the described air bag of first aspect is used for airbag apparatus, described airbag apparatus has air bag, described air bag is accommodated in the car door portion of compartment sidepiece with folded state, launch upward along the side surface part in this compartment by being imported into gas, wherein, the cover body of described air bag has: top board, and it covers the upside of the air bag of being taken in folded state; The side board, the edge part of its inboard, compartment of board above this extends setting downwards; First mounting part, it is arranged at described side board; Supporting slice portion, the lower surface in the outside, compartment of its board above described is prominent downwards to be established; Second mounting part, it is arranged at this supporting slice portion; And the fracture reservations, it is formed at described supporting slice portion, compares with described second mounting part to be positioned at upside, ruptures under the expansion pressure effect of described air bag.
So in this structure, when to the air bag supply gas that covered by cover body, airbag inflation launches, from downside pushing cover body.So, the fracture of the fracture reservations of supporting slice portion, above at least a portion of board towards the compartment inboard the rotation, form bloating of air bag and use path, air bag bloats with path along the expansion of expanding upward of the side surface part in compartment from this.By being located at first mounting part on the board of side directly or indirectly and supporting from the parts that second mounting part of the prominent downwards supporting slice portion that establishes of top board is connected the side surface part in compartment, thereby the rigidity that can improve cover body stably supports, and has improved the outward appearance of airbag apparatus.
For the cover body of the described air bag of second aspect, in the cover body of the described air bag of first aspect, described top board has: resinous surface element; With liner portion, described liner portion is bonded on the lower surface of this surface element integratedly, and is made by the material resin softer than described surface element, and supporting slice portion is integrally formed in described liner portion.
And then, according to this structure, because the surface element and the more soft liner portion of stacked relatively hard, the supporting slice portion that is provided with the fracture reservations is formed in the liner portion, therefore can reduce the cutting part or the fracture reservations that are formed at surface element, form bloating of air bag when having improved outward appearance significantly and use path, thereby air bag is launched easily smoothly.
Cover body for the described air bag of the third aspect, first or the cover body of the described air bag of second aspect in, the cover body of described air bag has the edge piece portion of extending setting from the edge part in the outside, compartment of top board downwards, and this edge piece portion is arranged on the outside, compartment of supporting slice portion and leaves from supporting slice portion.
And then in this structure, by in the mode of leaving supporting slice portion edge piece portion being set to the compartment outside in supporting slice portion, utilizing becomes the edge part that free-ended edge piece portion covers the side surface part of car door portion, can improve outward appearance.By making the fracture reservations fracture of supporting slice portion, edge piece portion is rotated with top board, can form bloating of air bag significantly and use path, air bag is launched easily smoothly.
For the cover body of the described air bag of fourth aspect, in first the cover body of the described air bag of either side to the third aspect, the fracture reservations form along the upper end of supporting slice portion.
And then, in this structure, can dwindle the supporting slice portion that when airbag inflation launches, rotates with top board, can suppress the supporting slice portion of top panel part side and the air bag that expand to launch between interference.
For the cover body of the described air bag in the 5th aspect, in first the cover body of the described air bag of either side to the third aspect, the fracture reservations form along the position of leaving from the upper end of supporting slice portion.
And then, in this structure, when airbag inflation launches, utilize the air bag channeling conduct of supporting slice portion to expanding and launching of rotating with top board, can suppress the interference between other the parts of air bag and cover body, it can be guided to the outside, compartment simultaneously.
The described airbag apparatus in the 6th aspect has: air bag, and it is accommodated in folding state in the car door portion of sidepiece in compartment, and the vehicle window by being imported into gas along the side surface part in this compartment launches upward; Charging blower, it is to this air bag supply gas; The described cover body of either side in first to the 5th aspect, the main part of this cover body constitute the inner-decoration component of described car door portion; And be installed in fixing body on the parts of described car door portion, it supports described air bag and described charging blower, and be provided with the first mounting support portion and the second mounting support portion, first mounting part of this cover body is installed in the described first mounting support portion, second mounting part of this cover body is installed in the described second mounting support portion.
And then, in this structure,,, can make the side surface part smoothly upward expansion expansion of air bag along the compartment therefore by air bag supply gas to being covered by cover body owing to the described cover body of either side that has in first to the 5th aspect.Cover body can be stably supported, and the outward appearance of airbag apparatus can be improved.
According to the present invention,, air bag is launched smoothly upward along the side surface part in compartment by air bag supply gas to being covered by cover body.Cover body can be stably supported, and the outward appearance of airbag apparatus can be improved.
Description of drawings
Fig. 1 is the instruction diagram that an embodiment of airbag apparatus of the present invention is shown.
Fig. 2 is the instruction diagram that above-mentioned airbag apparatus is installed in the state of car door portion, (a) is the figure before launching, the figure during (b) for expansion.
Fig. 3 is the instruction diagram that above-mentioned airbag apparatus is installed in the state of car door portion.
Fig. 4 is the inboard block diagram of observing the cover body of above-mentioned airbag apparatus from the compartment.
Fig. 5 is a block diagram of observing the cover body of above-mentioned airbag apparatus from the outside, compartment.
Fig. 6 is a block diagram of observing the cover body of above-mentioned airbag apparatus from downside.
Fig. 7 is the block diagram after the part of the cover body of above-mentioned airbag apparatus is amplified.
Fig. 8 is the block diagram of in-to-in first liner (packing) portion of the cover body of above-mentioned airbag apparatus.
Fig. 9 is the instruction diagram the when expansion of action of above-mentioned airbag apparatus is shown.
Figure 10 is a block diagram of observing the cover body of the airbag apparatus of representing other embodiments of the present invention from the outside, compartment.
Figure 11 is the block diagram after the part of above-mentioned airbag apparatus is amplified.
Figure 12 is the block diagram of the in-to-in first liner portion of cover body of the airbag apparatus of expression another embodiment of the invention.
Figure 13 is the block diagram of the in-to-in first liner portion of cover body of the airbag apparatus of expression another embodiment of the invention.
Figure 14 is the block diagram of the in-to-in first liner portion of cover body of the airbag apparatus of expression another embodiment of the invention.
Label declaration
1: car door portion;
2: the compartment;
15: the vehicle window that constitutes side surface part;
16: as the inner panel of parts;
21: airbag apparatus;
22: cover body;
31: air bag;
33: charging blower;
34: fixing body;
44: the second mounting support portions;
48: the cover bottom fastening portion that constitutes the first mounting support portion;
64: top board;
65: as the side board of main part;
66: edge piece portion;
76: as the outside matrix of surface element;
81: as the first liner portion of liner portion;
87: supporting slice portion;
96: the second mounting parts;
99: the fracture reservations;
103: as the fastening support of first mounting part
The specific embodiment
Below, with reference to accompanying drawing the cover body of air bag of the present invention and an embodiment of airbag apparatus are described.
In Fig. 2 and Fig. 3,1 for constituting the car door portion of auto body, and this car door portion 1 is located at the side of the seat that is provided with in the compartment 2.In addition, below, with vehicle directly to advance direction be benchmark to top (arrow U direction shown in Figure 3), from the direction of car door portion 1 side 2 center side towards the compartment be inboard, compartment (arrow C direction shown in Figure 3), 2 center side is that the outside, compartment (arrow D direction shown in Figure 3) and the place ahead directions such as (arrow F directions shown in Figure 2) describe towards the direction of car door portion 1 side from the compartment.
And then, this car door portion 1 has the framework 11 of the frame shape of the whole car door of encirclement portion 1, the following side of this framework 11 becomes door body portion 12, the upper lateral part of this framework 11 is windproof and forms vehicle window 15, the side surface part that described vehicle window 15 constitutes as predetermined face, and open and close opening by the wind glass 14 that is called as side glass or side window glass.And then door body portion 12 has: the parts that the conduct that is formed by metal sheet etc. is mounted parts are inner panel 16; And the outer side panel 17 that forms by metal sheet etc., described outer side panel 17 is positioned at the outside, compartment of this inner panel 16 and from position that this inner panel 16 is left.And then the part of the inboard, compartment of inner panel 16 is 18 coverings of main body entrance door trim board by the inner-decoration component that is formed by resin etc., and the cover body 22 that the part at the rear portion of upper lateral part is configured airbag apparatus 21 and is used as inner-decoration component covers.In addition, in Fig. 3, the 24, the 25th, be close to the sealing element that be also referred to as sealing band (weather strip) of glass for vehicle window about in the of 14.And, in Fig. 2, the 26th, the incorporating section, 27 use the grip part for opening/closing door of vehicle, and 28 is loud speaker.
And then; airbag apparatus 21 is device for passenger protection; it is the main so-called car door air bag (door mount air bag) of protection passenger's head when side impact or during roll; except cover body 22; also have the air bag 31 that is bag shape, to these air bag 31 supply gas as the charging blower 33 of gas generating unit and the fixing body 34 that is used to install these cover bodies 22, air bag 31 and charging blower 33, thereby these unit constructions are got up to constitute air bag module.Further, this airbag apparatus is connected with control setup via not shown wire harness.
And then air bag 31 is to sew up the bag shape parts that single or a plurality of base fabrics form, and for example, constitutes flat bag shape thereby unite by a seam between the peripheral part as the main panel of base fabric with two roughly the same shapes.And then, utilize predetermined method such as web-like and accordion-like to be folded into less shape usually.
And charging blower 33 has roughly columned charging blower main part, and the distolateral gas injection portion that is provided with at this charging blower main part is provided with adaptor union in the other end, is connected with wire harness on this adaptor union.And then, this charging blower 33 makes and is filled in in-to-in promoting drug reaction by transmitting ignition signal via wire harness from control setup, perhaps emit the gas that is stored in the in-to-in high-pressure gas container, from gas injection portion jet gas, thus directly or via pipe 33a shown in Figure 1 to air bag 31 supply gas.
And fixing body 34 for example is made of integratedly metal or by a plurality of component set-ups of combination, in the present embodiment, fixing body 34 is by having made up plate 41 and being fixed on formations such as retainer 42 on this plate.And then plate 41 is vertical configuration and flat metal plate body, is formed with vehicle body installation portion 41a in the following side, is formed with retainer installation portion 41b at the midway location of short transverse, and be formed with the second mounting support portion 44 at upper lateral part.And, on the face of the inboard, compartment of plate 41, can be provided for protecting the facial 41c of protection of air bag 31 as required.And retainer 42 for example forms by metal is carried out extrusion molding, and forms following parts: horizontal base plate 45; Extend the inboard board 46 of the vertical configuration of setting upward from the edge part of the inboard, compartment of this base plate 45; Edge part outside the compartment of base plate 45 extends the installation board 47 of setting downwards; And the cross section is the roughly cover bottom fastening portion 48 of L word shape, it is near the outstanding downwards setting edge part of the inboard, compartment of base plate 45 and constitute the first mounting support portion, further, as shown in Figure 3, also can be formed with the cross section that constitutes the first mounting support portion as required in the inboard, compartment of inboard board 46 and be circular-arc cover middle part fastening portion 49.And then, board 47 is installed is installed on the retainer installation portion 41b of plate 41, thereby constitute fixing body 34 by connecting elements such as rivet 50.And then, under this state, in the part of being surrounded, constitute the incorporating section 52 of side opening by plate 41, base plate 45 and inboard board 46, in this incorporating section 52, take in the air bag 31 that is in folded state and charging blower 33 etc.And then vehicle body installation portion 41a is installed on the inner panel 16 by connecting elements such as rivet 55, thereby this fixing body 34 is installed in the car door portion 1.
And then, cover body 22 is also referred to as lid (lid) etc., as Fig. 1 to shown in Figure 8, this cover body 22 constitute with compartment 2 sides be face side resinous outside 61 and be installed in resinous inner 62 duplexers that are laminated of the rear side of this outside 61 by vibration welded etc.
And then outside 61 form and main body entrance door trim board 18 continuous shape, thereby constitute the inner-decoration component that covers door body portion 12 with main body entrance door trim board 18.That is, said external 61 has: the top board 64 that covers door body portion 12 upsides; As the side board 65 of main part, its edge part with the inboard, compartment of being somebody's turn to do top board 64 extends setting continuously and downwards; Edge piece portion 66, the edge part in the outside, compartment of itself and top board 64 extends continuously and downwards and is provided with, and shorter than side board 65; And rear side board 67, itself and these above the edge part of rear side of board 64, side board 65 and edge piece portion 66 continuously covering trailing flank, and form as one or form separately.And then, top board 64 forms plane according to the appearance design of car door portion 1 or curved surface shape etc., but, in the present embodiment, top board 64 forms towards the outside, compartment bevelled inclined plane type a little upward, and the mode of can't see with 2 sides from the compartment covers the sealing element 25 of car door portion 1 etc.And, side board 65 forms the curved surface shape according to the shape of main body entrance door trim board 18, be formed with to engage at the edge part of downside and carry out bonded assembly trim board connecting portion 69 with main body entrance door trim board 18, and the part at downside is provided with sidepiece clearance portion 70 with suitable shape, so that miscellaneous part exposes, perhaps can carry out maintenance activity etc.And via the bevelled centre board according to the requirement of appearance design scheme and formation as required, the front of edge piece portion 66 is extended setting towards approximate vertical shape ground, below.And then, because this edge piece portion 66 is also referred to as the portion of being involved in, in order to see from compartment 2 sides the structure that sealing element 25 grades set the height and position of top board 64 higher to improve outward appearance, the mode that this edge piece portion 66 can not expose with the inside of car door portion 1 covers, thereby has improved outward appearance.And rear side board 67 is also referred to as back cover, as shown in Figure 4 and Figure 5, is provided with at rear side board 67 and is used to run through the rear side clearance portion 71 of inserting wire harness etc.
And then, on this outside 61, be formed with division portion 72, be formed with door leaf, the outside portion 74 that constitutes door leaf portion 73 in the inboard of dividing by this division portion 72.And then, division portion 72 is as the promptly weak portion of the thinner wall section of door leaf preset lines portion, be to be arranged with the part that forms than other part fragilities by outside 61 top board 64 and the following side of edge piece portion 66 being cut etc., as tear line or hinge performance function, as Fig. 2 and shown in Figure 4, division portion 72 has: long leg 72a, extend before and after near connecting bridge that it is connected with the side panel 65 of inboard, compartment along top board 64 or the connecting bridge; With short leg 72b, it extends edge part up to edge piece portion 66 from end, front and back of this long leg 72a to the outside, compartment, thereby division portion 72 forms to overlook and is the roughly shape of コ word shape.That is, this division portion 72 is part or complete rupture under air bag 31 expands the pressure effect that launches, and usually, the part of short leg 72b ruptures as outer fracture portion, and Duan Lie long leg 72a is not as easy deformation and the hinge of bending is brought into play function.And then the outside in division portion 72 is formed on the air bag 31 outline portion 75 outside the non-expansion portion that does not also launch when launching of expanding.
And then, this outside 61 is mainly formed by the resin of hard, in the present embodiment, as shown in Figure 1, this outside 61 for example is by forming than unfertile land one Decorative watch cortex 77 on as the surface of the outside matrix 76 of surface element, this skin covering of the surface 77 is used to improve the polyurathamc epidermis (PUR) of outward appearance and sense of touch, and injection-molded moulding forms described outside matrix 76 by the polypropylene (PP) as hard resin is carried out.
On the other hand, inner 62 is to make than the soft resin of the material formation of the material softer of the outside matrix 76 that constitutes outside 61 of material, in the present embodiment, as the first liner portion 81 of liner portion and the second liner portion 82 respectively by forming to carrying out injection molding forming as the resinoid TPO resin of elastomeric material (thermoplastic olefin).And then, the first liner portion 81 is positioned at the rear side of top board 64 and side board 65 upper lateral parts, and be installed in integratedly on outside 61 by vibration welded etc., the second liner portion 82 is positioned at the rear side of side board 65 following sides, and is installed in integratedly on outside 61 by vibration welded etc.In addition, in the Fabrication procedure of this cover body 22, form outside 61 outside matrix 76, inner 62 the first liner portion 81 and the second liner portion 82 respectively, and utilize vibration welded the first liner portion 81 to be installed in the back side of outside matrix 76, then, the surface of matrix 76 forms skin covering of the surface 77 to utilize reaction injection molded shaping to come externally, and is last, the second liner portion 82 is installed in the back side of outside matrix 76 by vibration welded.
And then as Fig. 1, Fig. 3, Fig. 5 and shown in Figure 8, the first liner portion 81 has formed with lower member: inboard door leaf portion 84, and the rear side that it is installed in outside 61 door leaf, outside portion 74 constitutes door leaf portion 73; Inboard outline portion 85, the rear side that it is installed in outside 61 outside outline portion 75 constitutes non-expansion portion; Hinge 86, it can the shifting ground connects the inboard, compartment of the compartment inboard and inboard outline portion 85 of these inboard door leaf portions 84; And supporting slice portion 87, its from the lateral, compartment of inboard door leaf portion 84 towards the i.e. side-prominent setting down of anti-expansion direction.
And then inboard door leaf portion 84 is to be close to and welding tabular on the back side of door leaf, outside portion 74.
And inboard outline portion 85 has: tabular inboard outline base portion 93, its be close to and welding on the back side of outside outline portion 75; With inboard outline end plate portion 94, be the vertical setting of giving prominence near the both ends that its length direction from this inboard outline base portion 93 is a fore-and-aft direction tabularly.And then, inboard outline base portion 93 forms tabular along the bending of outside outline portion 75 shapes in the mode of surrounding inboard door leaf 84 three partss of portion, further, as shown in Figure 3, also can be formed with the fastening support 95 of fastening in the cover middle part of fixing body 34 fastening portion 49 as required.
And then, hinge 86 can the shifting ground connects the edge part and the inboard outline portion 85 of the inboard, compartment of inboard door leaf portion 84, that is, hinge 86 is can make door leaf portion 73 and connect in the mode that to be the center launch promptly to rotate with respect to non-expansion portion of the axle along fore-and-aft direction and to support.And then this hinge 86 is relative with the long leg 72a of outside 61 division portion 72, and is the cross section downwards for U word shape ground bending roughly and bloat in the mode of striding this long leg 72a.Further, this hinge 86 is a plurality of sheets by cutting apart along the slit of inward-outward direction extension.
In addition, the part between the end, front and back of inboard door leaf portion 84 and the inboard outline portion 85 becomes the part relative with the short side part 72b of division portion 72.Though this part also can form thin-wall fracture reservations, forming grooving in the present embodiment is slit.
Further, supporting slice portion 87 is the air bag module fixed parts that are also referred to as inboard longitudinal wall, and it gives prominence to setting from what be vertical configuration near the end in the outside, compartment of inboard door leaf portion 84 downwards tabularly.And then, front in this supporting slice portion 87 is second mounting part 96 that lower end side is provided with a plurality of circular hole, and supporting slice portion 87 is installed in the second mounting support portion 44 of fixing body 34 by the connecting elements such as bolt 97 that are inserted in this second mounting part 96.And then, in this supporting slice portion 87, on the position that is positioned at the upper end (promptly along the lower surface of the first liner portion 81 and in the position of leaving above second mounting part 96), be formed with fracture reservations 99.These fracture reservations 99 are also referred to as break inside portion, are the groove shape that is arranged with from the outside, compartment, form other part fragilities than supporting slice portion 87, thereby can rupture under air bag 31 expands the pressure effect that launches.
And, the second liner portion 82 is also referred to as lower support portion, form tabular baseplate part 101 and a plurality of supporting board 102, described baseplate part 101 is adjacent to also welding in the following side at door leaf, outside portion 74 back sides, and described a plurality of supporting boards 102 are the outstanding setting in the outside, compartment from this baseplate part 101 to rear side.And then, on each back plate 102, being formed with fastening support 103 as the through hole shape of first mounting part, this fastening support is used for the cover bottom fastening portion 48 of fastening fixing body 34.
And the control setup that is connected on the charging blower 33 of this airbag apparatus 21 has CPU, and is connected with single or a plurality of sensors, sends the ignition signal that makes charging blower 33 startings according to the states such as angle of passenger, bump, vehicle body.
Therefore, as shown in figures 1 and 3, this airbag apparatus 21 is taken in the air bag 31 of charging blower 33 and folded state in the incorporating section 52 of fixing body 34, and covers these parts with cover body 22, thereby constitutes air bag module.And then, with regard to this cover body 22, with fastening support 95 fastenings of the first liner portion 81 in the cover middle part of fixing body 34 fastening portion 49, with fastening support 103 fastenings of the second liner portion 82 in the cover bottom of fixing body 34 fastening portion 48, utilize the connecting element 97 that inserts from the compartment outside that second mounting part 96 of supporting slice portion 87 is installed in the second mounting support portion 44 of fixing body 34 simultaneously, thus, constitute the state that cover body 22 is fixed all the time.
And then, charging blower 33 and control setup are electrically connected, utilize connecting element 55 that the vehicle body installation portion 41a of fixing body 34 is installed on the inner panel 16 of car door portion 1 simultaneously, and the trim board connecting portion 69 of cover body 22 lower ends is fastened on the main body entrance door trim board 18, thus airbag apparatus 21 is arranged in the car door portion 1.
Action when secondly, airbag apparatus 21 being launched describes.
When the receiving state from Fig. 1, Fig. 2 (a) and air bag 31 shown in Figure 3, when the vehicle body of automobile was subjected to impacts such as side impact or roll etc., control unit was judged based on the signal of sensor etc. and is started 33 pairs of air bag 31 supply gas of charging blower.So the expansion of 52 open upper side launches towards the incorporating section in these air bag 31 beginnings, and the door leaf portion 73 of pushing cover body 22.And then, as shown in Figure 9, under the pressure effect that this is pushed, fracture reservations 99 fractures of inner 62 supporting slice portion 87, part or all of the portion of division simultaneously 72, short leg 72b fracture at least.And then when air bag 31 further expansions launched, the door leaf portion 73 of being pushed by this air bag 31 was that fulcrum rotates to the inboard, compartment with the long leg 72a of outside 61 and the hinge 86 of inside 62, uses path thereby the air bag of formation air bag 31 bloats.In addition, externally the long leg 72a of 61 division portion 72 does not rupture but under the situation of bonded assembly state, this long leg 72a becomes fulcrum, and hinge 86 is out of shape in the mode that stretches, and door leaf portion 73 rotates smoothly.And, when long leg 72a ruptures,, hinge 86 becomes fulcrum on one side Yi Bian being out of shape in the mode that stretches, and door leaf portion 73 rotates smoothly.And then, shown in Fig. 2 (b), from the outstanding air bag 31 of this aspis door leaf portion 73 is rotated on one side, Yi Bian via between this door leaf portion 73 and the vehicle window 15 along vehicle window 15 to the upside expansion of expanding smoothly, limit the passenger who moves to the side, its head etc. is protected.
Like this, according to present embodiment, the so-called car door air bag that expands upward and launch for the upper surface that makes the air bag 31 that is accommodated in the car door portion 1 from car door portion 1, because stacked outside 61 and inner 62 constitute cover body 22, and in inner 62 supporting slice portion 87, be provided with fracture reservations 99, therefore can reduce to be formed at cutting part that becomes joint or fracture reservations on outside 61 the outside matrix 76, thereby can guarantee appearance design face significantly, improve outward appearance, simultaneously, can make cover body 22 turn to the edge piece portion 66 in the compartment outside, use path, make air bag 31 expansion of expanding smoothly thereby can form bloating of air bag 31 significantly.And then, because when air bag 31 expands expansion, as long as be located at the fracture reservations 99 in inner 62 the supporting slice portion 87 and be located at the 72b of the short leg at least fracture of the division portion 72 on outside 61, therefore door leaf portion 73 is rotated smoothly, make air bag 31 expansion of expanding smoothly.
Further, inboard, compartment for cover body 22, with fastening support 95 fastenings of the first liner portion 81 in the cover middle part of fixing body 34 fastening portion 49, and with fastening support 103 fastenings of the second liner portion 82 in the cover bottom of fixing body 34 fastening portion 48, fix with this, simultaneously, the outside, compartment for cover body 22, be fixed in the second mounting support portion 44 of fixing body 34 by second mounting part 96 of connecting element 97 supporting slice portion 87, therefore, can improve the rigidity of cover body 22 and can not installing securely with rocking.Therefore, even in switching car door portion 1 or passenger cover body 22 is executed under the power-assisted situation, cover body 22 can not be out of shape yet, and can keep good surface appearance like this.
And then, though supporting slice portion 87 is in 99 fractures of fracture reservations when air bag 31 expands expansion, but because these fracture reservations 99 are along the upper end formation of supporting slice portion 87, therefore when air bag 31 expands expansion, can dwindle the supporting slice portion 87 that rotates with top board 64, thus the interference between the air bag 31 of the supporting slice portion 87 that can suppress top board 64 sides and the expansion of expanding.
And, because this airbag apparatus 21 constitutes air bag module with following state: charging blower 33 and air bag 31 are installed on the fixing body 34, the cover body 22 that will constitute a door trim plate part simultaneously is installed on the fixing body 34, therefore the operation that can improve keeping, conveyance by the modularization of airbag apparatus 21 and be assembled into the vehicle body operation.
And, because therefore the door leaf portion 73 of cover body 22 guides air bag 31 to the outside, compartment, thereby air bag 31 is launched smoothly along the glass for vehicle window 14 of vehicle window 15 to the inboard rotation in compartment.
And,, therefore can utilize the edge part of the vehicle window 15 of the side surface part that becomes 66 pairs of formations car door portion of free-ended edge piece portion 1 to be covered, thereby can improve outward appearance because edge piece portion 66 is located at from supporting slice portion 87 on the position of leaving outside the compartment.And then, by fracture reservations 99 fractures that make supporting slice portion 87, thereby edge piece portion 66 is rotated with the door leaf portion 73 of top board 64, form bloating of air bag 31 significantly and use path, air bag 31 is launched smoothly.
Like this, by being set, edge piece portion 66 can realize simultaneously easily that the raising of outward appearance and the suitable slip expander of air bag 31 launch.
In addition, in the above-described embodiment, the short leg 72b of division portion 72 and long leg 72a are formed the groove that outside 61 outside matrix 76 is arranged with linearlyly, but be not limited to this shape.For example, in the above-described embodiment, as shown in Figure 7, cover body 22 has the edge piece portion 66 that is involved in shape that is, part in this edge piece portion 66, shown in arrow S, making the power of outside 61 fracture of cover body 22 become along the power of the surface direction of edge piece portion 66 is the power of shear direction.The situation that the division portion 72 of therefore, consideration hypothesis these edge piece portion 66 parts when the length dimension of the division portion 72 of the part of this edge piece portion 66 of increase is not easy to rupture smoothly.Therefore, as shown in Figure 10 and Figure 11, part in edge piece portion 66, by up to till the position of outward appearance, forming the notch 111 that begins the short leg 72b of division portion 72 is carried out otch from edge part, the division portion 72 of the part of edge piece portion 66 is ruptured smoothly.In addition,,, also externally form after the notch 111 on the matrix 76,, thereby can improve outward appearance with skin covering of the surface 77 these notchs 111 of covering of polyurethane system except being formed up to without detriment to the position of outward appearance for this notch 111.Further, for this notch 111, as shown in figure 11,, can make the cover body 22 and the air bag 31 that the launches butt smoothly that expands by the bight 111a at tip is formed the curved surface shape.
And in the above-described embodiment, it is flat tabular that supporting slice portion 87 is, and fracture reservations 99 form along the linearity groove of the length direction of this supporting slice portion 87, but are not limited to this structure.For example, usually charging blower 33 is arranged on the front side or the rear side of air bag 31, and from the front of length direction or rear end side airbag 31, imports gas via pipe 33a from charging blower 33.Therefore, the part that the partial sum that promptly is imported near gas in charging blower 33 sides is imported into away from gas, under the larger-size situation of the length direction of cover body 22, there are the tendency of fracture promptly in time that gas is imported into and applied pressure difference near charging blower 33 sides.Therefore, for example as shown in figure 12, be slit portion 121 by on fracture reservations 99, forming through hole with proper spacing, the reservations that will rupture 99 are divided into a plurality of, can reduce the disruption characteristic of reservations 99 that ruptures thus, can both easily rupture smoothly thereby spread all over total length.That is, even, fracture reservations 99 are ruptured smoothly away from charging blower 33 and be provided with the part of edge piece portion 66.And, for this slit portion 121, except forming with certain interval, near charging blower 33 1 sides, make the short slit portion 121 of the i.e. formation of length of fracture reservations 99, make fracture reservations 99 shorten i.e. formation than long slit portion 121, thus along with leaving charging blower 33, can make the roughly fracture simultaneously alongst of fracture reservations 99, air bag 31 is alongst launched equably.And, utilize this slit portion 121 to cut apart fracture reservations 99, and do not cut apart supporting slice portion 87, can improve the rigidity of supporting slice portion 87 thus, can improve and use connecting element 97 second mounting part 96 of supporting slice portion 87 to be installed in the operation of the operation on other the parts.
In addition, through hole is that the shape of slit portion 121 is not limited to the shape of only fracture reservations 99 being carried out otch shown in Figure 12, for example also can form the rectangular-shaped opening 122 that the part of supporting slice portion 87 is carried out otch as shown in Figure 13, perhaps, also can form as shown in Figure 14 supporting slice portion 87 self is divided into a plurality of notch 123.
And, by forming fracture reservations 99 along the midway location of the short transverse of supporting slice portion 87, the position of promptly leaving from the upper end of supporting slice portion 87, thereby when air bag 31 expands expansion, can utilize 87 pairs of air bag 31 channeling conducts of expanding and launching of supporting slice portion of rotating with top board 64, can suppress the interference between the parts beyond the supporting slice portion 87 of air bag 31 and cover body 22, simultaneously air bag 31 be guided to the outside, compartment.Further, the height and position of these fracture reservations 99 forms corresponding with the height and position of the bottom of outside 61 edge piece portion 66, thereby can suppress other parts of air bag 31 and cover body 22, the particularly interference between the edge piece portion 66 below being darted at.
And, cover the part of car door portion 1 although understand cover body 22, but be not limited to this structure, also can cover the single-piece door trim plate of car door portion 1 with forming as one.
And the shape of charging blower and air bag and structure are not limited to above-mentioned shape and structure, can use the charging blower and the air bag of various structures.
Utilizability on the industry
The inventive example is if be applied to the airbag apparatus that the car door section of automobile has.
Claims (6)
1, a kind of cover body of air bag, the cover body of described air bag is used for airbag apparatus, and described airbag apparatus has air bag, described air bag is accommodated in the car door portion of compartment sidepiece with folded state, launch upward along the side surface part in this compartment by being imported into gas, it is characterized in that
The cover body of described air bag has:
Top board, it covers the upside of the air bag of being taken in folded state;
The side board, the edge part of its inboard, compartment of board above this extends setting downwards;
First mounting part, it is arranged at this side board;
Supporting slice portion, the lower surface in the outside, compartment of its board above described is prominent downwards to be established;
Second mounting part, it is arranged at this supporting slice portion; And
The fracture reservations, it is formed at described supporting slice portion, is positioned at than described second mounting part by upside, ruptures under the expansion pressure effect of described air bag.
2, the cover body of air bag according to claim 1 is characterized in that,
Top board has: resinous surface element; With liner portion, described liner portion is bonded on the lower surface of this surface element integratedly, and is made by the material resin softer than described surface element,
Supporting slice portion is integrally formed in described liner portion.
3, the cover body of air bag according to claim 1 and 2 is characterized in that,
The cover body of described air bag has the edge piece portion of extending setting from the edge part in the outside, compartment of top board downwards, and this edge piece portion is arranged on the outside, compartment of supporting slice portion and leaves from supporting slice portion.
4, according to the cover body of each the described air bag in the claim 1 to 3, it is characterized in that,
The fracture reservations form along the upper end of supporting slice portion.
5, according to the cover body of each the described air bag in the claim 1 to 3, it is characterized in that,
The fracture reservations form along the position of leaving from the upper end of supporting slice portion.
6, a kind of airbag apparatus is characterized in that,
Described airbag apparatus has:
Air bag, it is accommodated in folded state in the car door portion of sidepiece in compartment, and the vehicle window by being imported into gas along the side surface part in this compartment launches upward;
Charging blower, it is to this air bag supply gas;
The described cover body of in the claim 1 to 5 each, the main part of this cover body constitute the inner-decoration component of described car door portion; And
Be installed in the fixing body on the parts of described car door portion, it supports described air bag and described charging blower, and be provided with the first mounting support portion and the second mounting support portion, first mounting part of this cover body is installed in the described first mounting support portion, second mounting part of this cover body is installed in the described second mounting support portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007251939A JP4861282B2 (en) | 2007-09-27 | 2007-09-27 | Airbag cover body and airbag device |
| JP2007-251939 | 2007-09-27 | ||
| JP2007251939 | 2007-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101397002A true CN101397002A (en) | 2009-04-01 |
| CN101397002B CN101397002B (en) | 2012-07-25 |
Family
ID=40147973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101497919A Expired - Fee Related CN101397002B (en) | 2007-09-27 | 2008-09-27 | Airbag cover body and airbag apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7766380B2 (en) |
| EP (1) | EP2042386B1 (en) |
| JP (1) | JP4861282B2 (en) |
| CN (1) | CN101397002B (en) |
| DE (1) | DE602008005685D1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102529866A (en) * | 2012-01-13 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Automobile side surface protection device |
| CN102939224A (en) * | 2010-05-11 | 2013-02-20 | 江森自控科技公司 | Vehicle interior assembly |
| CN108569242A (en) * | 2017-03-13 | 2018-09-25 | 丰田合成株式会社 | Head portion protecting air bag apparatus |
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| JP5324810B2 (en) * | 2008-04-11 | 2013-10-23 | 河西工業株式会社 | Interior parts for vehicles |
| JP5088745B2 (en) * | 2008-07-22 | 2012-12-05 | 河西工業株式会社 | Interior parts for vehicles |
| JP5215245B2 (en) * | 2009-06-19 | 2013-06-19 | 本田技研工業株式会社 | Bag cover for airbag device |
| JP5319414B2 (en) * | 2009-06-19 | 2013-10-16 | 本田技研工業株式会社 | Airbag cover body and airbag device |
| JP5215246B2 (en) * | 2009-06-19 | 2013-06-19 | 本田技研工業株式会社 | Bag cover for airbag device |
| JP5295878B2 (en) * | 2009-06-19 | 2013-09-18 | 本田技研工業株式会社 | Airbag device |
| JP5307646B2 (en) * | 2009-06-19 | 2013-10-02 | 本田技研工業株式会社 | Airbag cover body and airbag device |
| JP2011001009A (en) * | 2009-06-19 | 2011-01-06 | Honda Motor Co Ltd | Cover body of airbag and airbag device |
| JP5236584B2 (en) * | 2009-06-19 | 2013-07-17 | 本田技研工業株式会社 | Cover body of airbag device and airbag device |
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-
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- 2008-09-26 DE DE602008005685T patent/DE602008005685D1/en active Active
- 2008-09-26 EP EP08253152A patent/EP2042386B1/en not_active Not-in-force
- 2008-09-27 CN CN2008101497919A patent/CN101397002B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939224A (en) * | 2010-05-11 | 2013-02-20 | 江森自控科技公司 | Vehicle interior assembly |
| CN102529866A (en) * | 2012-01-13 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Automobile side surface protection device |
| CN102529866B (en) * | 2012-01-13 | 2014-07-16 | 浙江吉利汽车研究院有限公司 | Automobile side surface protection device |
| CN108569242A (en) * | 2017-03-13 | 2018-09-25 | 丰田合成株式会社 | Head portion protecting air bag apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2042386A3 (en) | 2010-08-04 |
| JP2009083532A (en) | 2009-04-23 |
| US20090085332A1 (en) | 2009-04-02 |
| EP2042386B1 (en) | 2011-03-23 |
| DE602008005685D1 (en) | 2011-05-05 |
| US7766380B2 (en) | 2010-08-03 |
| CN101397002B (en) | 2012-07-25 |
| EP2042386A2 (en) | 2009-04-01 |
| JP4861282B2 (en) | 2012-01-25 |
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